/*
Simple Forum Auto Poster.
Copyright (C) 2011 Gianni Van Hoecke.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package domain.filter;

import java.io.File;
import javax.swing.filechooser.FileFilter;

/**
 * 
 * @author Gianni Van Hoecke <gianni.vh@gmail.com>
 * Custom file filter.
 */
public class ExtensionFileFilter extends FileFilter
{
    String description;
    String extensions[];

    public ExtensionFileFilter(String description, String extension)
    {
        this(description, new String[]{extension});
    }

    public ExtensionFileFilter(String description, String extensions[])
    {
        if (description == null)
        {
            this.description = extensions[0];
        } 
        else
        {
            this.description = description;
        }
        this.extensions = (String[]) extensions.clone();
        toLower(this.extensions);
    }

    private void toLower(String array[])
    {
        for (int i = 0, n = array.length; i < n; i++)
        {
            array[i] = array[i].toLowerCase();
        }
    }

    public String getDescription()
    {
        return description;
    }

    public boolean accept(File file)
    {
        if (file.isDirectory())
        {
            return true;
        } 
        else
        {
            String path = file.getAbsolutePath().toLowerCase();
            for (int i = 0, n = extensions.length; i < n; i++)
            {
                String extension = extensions[i];
                if ((path.endsWith(extension) && (path.charAt(path.length() - extension.length() - 1)) == '.'))
                {
                    return true;
                }
            }
        }
        return false;
    }
}